Driven Diagnostics Auto Repair
“And I called them up and they said I need a crank relearn and it will be fixed and they did a crank relearn on my car and it's fixed stellar job highly recommended”
Best Engine Repair & Rebuild in Grand Junction, CO
14 technicians listed · 13 in Grand Junction · 1 open weekends · 8 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Scotty's Complete Car Care Center
“They also did me a huge solid and moved my brake controller after they installed it already and for that I'm extremely grateful.”
Kissner Motors
“We purchased our truck from them and we addressed some issues with the vehicle and Mike helped us tremendously with the repairs and got our truck going again.”
Pearmain's Performance and Automotive
“Kelly and his crew (Cash too) are the only mechanics I will let touch my 46 year old car.”
Motor City Alignment & Repair
“These guys are amazing at what they do, and they don't charge nearly as much as they should for the level of service they provide”
Whitewater Motorsports & Cage Works Welding
“Excellent group of guys, top of the line techs extremely knowledgeable and can answer any question or concern you may have.”
Listed for drivers in and around Grand Junction, CO, these 14 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
Area overview: Grand Junction, CO
13 of the 14 technicians we list are based in Grand Junction; the other one serves Grand Junction from Hurricane, UT (2 mi). The technicians on this page are rated from 3.8 to 5.0 across 1,591 reviews; 4 have 50 or more reviews and 8 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price" and "diagnosis". 1 is open on Saturdays. 1 shows a license on its website. 5 have ten or more years of experience, the longest 75 years. 1 offers financing; 1 gives free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 10 of the technicians on this page; 10 publish a contact page and 3 list a public email. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Why do some listings show another city?
13 of the 14 shops are in Grand Junction itself and the rest come from other towns within 5 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
Boostx Motorsports
“Matt and his team did a procharger install with a dyno tune on my 3v mustang.”
Diesel Performance
“They had the turbo I needed when nobody else in town had one and I had to be back to Kansas by morning!”
SKM Diesel Services
“The shop mechanic immediately came out and identified our issue and gave us options on how to proceed.”
The House
“I know he won't turn me away for not knowing something or try to up charge or up sale me on anything I don't need.”
Grand Valley Performance
“I was very happily surprised with his quick knowledge and the way he took care of me while fixing up my new power stroke.”
De Performance LLC
“Wish he could duplicate himself, poor guy is very very good but very very busy”
Double R Diesel
23 Diesel and Offroad
“Great place, did almost all of the work on my truck, I have pulled 18,000lb, and driven form Colorado to Washington twice this year no issues”
Why these companies made our list
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